Ryonet Hi fi emulsion

[Doug S]

Gotta say we've tried several different emulsions lately.  This week we tried the Ryonet Hi Fi.  This stuff is amazing in my opinion.  Their advertising says it's for plastisol however, when you look at the tech sheet it says it's good for discharge, waterbase and plastisol.  I can't vouch for the waterbase or discharge yet because I haven't tried it "I'm sure you'd need a hardener"   For our exposure unit we have the MSP3140 and man oh man this stuff exposes fast.  For example using a 110 coated 2/1 it exposed in 95 light units and has a nice thick stencil.  I can't give you the stencil thickness as far as microns goes but it pretty much compares to the Aquasol HV.  Another plus is that we use double-sided tape to attach our positive to the back of our screens and have yet to have any remain stuck to the screen when we remove our films.  It has held up well on press also.  The largest run we've had using the Hi Fi was 1400 pcs with no break down.  I loved the Aquasol but usually would have streaks start coming through along the edges of the squeegee and floodbar unless I taped along the back side where they traveled.  The only downfall was the price of the HiFi at around $70 or so a gallon.  The way I look at it is it will speed up my screen making and also give my exposure bulb a longer life so it's worth it to me.   What's everyone elses favorite?

I just had to give my opinion. 

[Colin]

We were using it for a year or so where I work now.  It performs really well and has really good detail hold with a fast exposure time.  For waterbase/discharge you can add Diazo.  It's non Ryonet name is TX Texcharge from CCI.  What you are buying now is the Texcharge emulsion without the diazo.

Drawback: it tends to stick to the glass after the exposure unit warms up and it sticks really bad with coated LX mesh.  The emulsion also has a tendency to pull the image off of inkjet films at the same time the emulsion sticks to the glass of the exposure unit.

35% relative humidity, strong dehumidifier, and making sure all screens had proper time to be fully dry have not helped.

Otherwise I liked it!

[Doug S]

We were using it for a year or so where I work now.  It performs really well and has really good detail hold with a fast exposure time.  For waterbase/discharge you can add Diazo.  It's non Ryonet name is TX Texcharge from CCI.  What you are buying now is the Texcharge emulsion without the diazo.

Drawback: it tends to stick to the glass after the exposure unit warms up and it sticks really bad with coated LX mesh.  The emulsion also has a tendency to pull the image off of inkjet films at the same time the emulsion sticks to the glass of the exposure unit.

35% relative humidity, strong dehumidifier, and making sure all screens had proper time to be fully dry have not helped.

Otherwise I liked it!

I appreciate the non-ryonet name of it.  I'll have to get the Texcharge diazo.  So far I haven't had it stick to the glass but I haven't had any exposing of 20 screens back to back this week. The most was about 10 consecutively so maybe the glass didn't have time to really heat up.  It does pull a little of the ink off of the films but not  so much that I couldn't reuse them.  Our dark room pretty much stays at 35 to 40% relative humidity and at 75 degrees.  I like the detail it holds also.

[sben763]

http://www.ccidom.com/download.php?id=937. This is what the HI-FI is in CCI. If you like the Hi-Fi you should try Saati Chem PHU. 50% solids really close to the Hi-Fi. Water base and discharge without a hardener.$49 a gallon or $180 for 4 gallons.  The CCI product with hardener started breaking down with waterbase on me.

[spotcolorsupply]

http://www.ccidom.com/download.php?id=937. This is what the HI-FI is in CCI. If you like the Hi-Fi you should try Saati Chem PHU. 50% solids really close to the Hi-Fi. Water base and discharge without a hardener.$49 a gallon or $180 for 4 gallons.  The CCI product with hardener started breaking down with waterbase on me.

The above product is available here.... 

http://shop.spotcolorsupply.com/Emulsion_c48.htm

 

[Doug S]

http://www.ccidom.com/download.php?id=937. This is what the HI-FI is in CCI. If you like the Hi-Fi you should try Saati Chem PHU. 50% solids really close to the Hi-Fi. Water base and discharge without a hardener.$49 a gallon or $180 for 4 gallons.  The CCI product with hardener started breaking down with waterbase on me.

The above product is available here.... 

http://shop.spotcolorsupply.com/Emulsion_c48.htm

 

http://www.ccidom.com/download.php?id=937. This is what the HI-FI is in CCI. If you like the Hi-Fi you should try Saati Chem PHU. 50% solids really close to the Hi-Fi. Water base and discharge without a hardener.$49 a gallon or $180 for 4 gallons.  The CCI product with hardener started breaking down with waterbase on me.

Thanks for the info, I'm going to check it out.  As long as I can keep the short exposure and at the same time maintain proper exposure with a great EOM, that will keep me from having to invest in a larger exposure unit with a higher wattage lamp. 

[SeñorPepperHead]

The Saati PHU is not the answer here. It will breakdown in a couple hours and if you used a hardener it will become brittle. If you want a great emulsion for Plastisol, Water Base and Discharge without hardener and good for 5k+ impressions go with the CCI - C-Tex emulsion. It does require a Diazo but the resolution and durability are fantastic.

If you have a weaker light source and exposure times are an issue then try CCI's new VPR emulsion which is a pure photopolymer that is also water resistant, high solids and can be post hardened for an additional 15% water resistance. For real long runs you can also add a Diazo.

[screenprintguy]

CCI rep named Robert came here last month, left me a gallon of CCI HXT emulsion to try. gave me diazo for half a gallon, so I split the bucket, Diazo in one half straight coated the rest. This, for us, is our new all around emulsion. With Diazo, amazing, did a test run, 40 psi wet on wet discharge, double strokes 500 piece run, zero wear or break down on a "non diazo" screen set up with the HXT. No hardener either. We just loaded up on a nice stock of it, won't need the diazo. Been running discharge jobs on the auto all week, no more hardener, no more post exposing, fast non diazo exposures. Also, for us, perfect imaging when running screens through our I-Image CTS. This emulsion to me is as good as the nova that I had fell in love with, but, like I said, no diazo. Now maybe if I had a 10,000 piece run, those don't come around very often if ever for us, I would think about the diazo or hardener. But 1,000 piece, over the seem prints all day, no problems, under 50 bucks a gallon at that. 80 23x31 screens coated 2 over 2 with the round edge from a gallon of the CCI HXT for me. Love this stuff!!!! I probably wouldn't have tried it since I really loved the Nova, but Tonypep was adamant on the use of CCI emulsions for discharge, I'm glad I gave it a chance!

[Screened Gear]

CCI rep named Robert came here last month, left me a gallon of CCI HXT emulsion to try. gave me diazo for half a gallon, so I split the bucket, Diazo in one half straight coated the rest. This, for us, is our new all around emulsion. With Diazo, amazing, did a test run, 40 psi wet on wet discharge, double strokes 500 piece run, zero wear or break down on a "non diazo" screen set up with the HXT. No hardener either. We just loaded up on a nice stock of it, won't need the diazo. Been running discharge jobs on the auto all week, no more hardener, no more post exposing, fast non diazo exposures. Also, for us, perfect imaging when running screens through our I-Image CTS. This emulsion to me is as good as the nova that I had fell in love with, but, like I said, no diazo. Now maybe if I had a 10,000 piece run, those don't come around very often if ever for us, I would think about the diazo or hardener. But 1,000 piece, over the seem prints all day, no problems, under 50 bucks a gallon at that. 80 23x31 screens coated 2 over 2 with the round edge from a gallon of the CCI HXT for me. Love this stuff!!!! I probably wouldn't have tried it since I really loved the Nova, but Tonypep was adamant on the use of CCI emulsions for discharge, I'm glad I gave it a chance!

So your using ProChem HXT with no hardener and getting 500+ prints. That is a non Diazo emultion on their website. So no hardener and still getting 500+. Funny its not even a water resistant emultion. I think that is the one my rep tried to switch me to. I use Aquasol HV and it was really close. I think it even gave better detail that HV. I may have to revisit that emultion.

[screenprintguy]

Thats correct Jon. I returned 4 gallons of aquasol once I tried the HXT recomended by my cci rep. Love it man no diazo, no hardner, great stuff for our system.

[Screened Gear]

I have a quart here. I will try it. What was your exposure times compaired to aquasol hv. Have you had any issues with pin holes.

[JBLUE]

Thats correct Jon. I returned 4 gallons of aquasol once I tried the HXT recomended by my cci rep. Love it man no diazo, no hardner, great stuff for our system.

What unit are you exposing it on? 5k or more? Just curious.

[Colin]

Just a reminder for all parties interested here.  The strength of th ebulb comes into play with what emulsion is viable in your shop.  With my Nuarc 3140 (1200 watt metal halide) I know Diazo is not for our shop.  Exposure times will be 200-400 light units....

Even the great single part emulsions out there are not created equal when it comes to light source.... the stronger the light source, the better.

Tried the Saati PHU and my bulb is definitely on the week side for that emulsion.  Other shops I know that use it have 5-6K bulbs and they get 5k plus impressions out of a screen.

Oh, the VPR is extremely difficult to reclaim btw.

Remember to qualify your results by giving us your specs!!!

[Screened Gear]

Just a reminder for all parties interested here.  The strength of th ebulb comes into play with what emulsion is viable in your shop.  With my Nuarc 3140 (1200 watt metal halide) I know Diazo is not for our shop.  Exposure times will be 200-400 light units....

Even the great single part emulsions out there are not created equal when it comes to light source.... the stronger the light source, the better.

Tried the Saati PHU and my bulb is definitely on the week side for that emulsion.  Other shops I know that use it have 5-6K bulbs and they get 5k plus impressions out of a screen.

Oh, the VPR is extremely difficult to reclaim btw.

Remember to qualify your results by giving us your specs!!!

Are you saying a 1000K light and a 5K light will burn the screen differently? I understand the 1K would take longer then a 5K (if they both worked the same, shutter or no shutter units) but your saying the emulsion itself will last longer with the 5K over the same exposure on a 1K. (by "same exposure" I mean they both fully cured the emultion it just took the 1K longer)

I have a hard time believing that, if that is what your saying.

By the way I have 3 screens coated with CCI HXT right now. I will treat it like its just a normal Aquasol screen and see. If it does like screenprintguy said, and I hope it does, I maybe trying a bucket or two this month.

[Colin]

Just a reminder for all parties interested here.  The strength of th ebulb comes into play with what emulsion is viable in your shop.  With my Nuarc 3140 (1200 watt metal halide) I know Diazo is not for our shop.  Exposure times will be 200-400 light units....

Even the great single part emulsions out there are not created equal when it comes to light source.... the stronger the light source, the better.

Tried the Saati PHU and my bulb is definitely on the week side for that emulsion.  Other shops I know that use it have 5-6K bulbs and they get 5k plus impressions out of a screen.

Oh, the VPR is extremely difficult to reclaim btw.

Remember to qualify your results by giving us your specs!!!

Are you saying a 1000K light and a 5K light will burn the screen differently? I understand the 1K would take longer then a 5K (if they both worked the same, shutter or no shutter units) but your saying the emulsion itself will last longer with the 5K over the same exposure on a 1K. (by "same exposure" I mean they both fully cured the emultion it just took the 1K longer)

I have a hard time believing that, if that is what your saying.

By the way I have 3 screens coated with CCI HXT right now. I will treat it like its just a normal Aquasol screen and see. If it does like screenprintguy said, and I hope it does, I maybe trying a bucket or two this month.

Apparently, from what I have been told from the techs at multiple emulsion companies, the 1200W unit does not emit light in quite the same frequency as the 5k bulbs do........ it falls a little short.  Sure, you can overexpose your screen to try and make sure the emulsion fully kicks over, but then you are loosing detail and undercutting your films.  In my book, that means the emulsion does not work as well on a 1200W unit as it does on a stronger unit.  Hence making your screens not as durable as those exposed on a 5k unit or better.

No, I do not remember what the frequency is and how far short it falls.  But apparently it has enough of an impact for it to be notable to a tech.  This was also confirmed by Grant Hewit the West Coast Saati rep who was in my shop on Wednesday.  He confirms that it is very difficult to make the PHU work on a 1200W unit.  We did not chat about wavelength frequencies however.  Everyone he knows who is using the PHU has at least a 5k bulb...  He is looking into more details about how it performs on a 1200W unit.

I will try to get some hard/tangible info from a tech next time I chat with one, or if someone has a link to an article that has already been written, that would be great!

Edit:  Fixed quote multi posting.